Ice-clearing trolley.



G. G. W00 IOB CLEARING T Y.

APPLICATION FILED MAY 27, 1912 1,086,879. t Patented Feb. 10, 1914.

CHARLES G. WOODS, OF ST. LOUIS, MISSOURI.

ICE-CLEARING TROLIJEY.

Specification of Letters Patent.

Patented Feb. f0, 1914.

Application filedMay 27, 1912. Serial No. 700,097.

T 0 all whom it may concern Be it known that 1, CHARLES Gr. \Vooos, acitizen of the United States, and resident of St. Louis, Missouri, haveinvented certain new and useful Improvements in Ice-Clearing Trolleys,of which the following is a specification containing a full, clear, andexact description, reference being had to the accompanying drawings,forming a part hereof.

My invention relates to improvements in ice clearing trolleys. and theobject of my invention is to construct a device which may be readily anddetachably secured to the pole which carries the trolley wheel so as tocarry a wheel having spaced apart elements which contact with the wirein advance of the trolley wheel so that the ice will be cleared from thetrolley wire in advance of the trolley wheel.

With the above purposes in view my invention consists in certain novelfeatures of construction and arrangement of parts as will be hereinaftermore fully described, pointed out in the claim and illustrated by theaccompanying drawings, in which Figure 1 is a view illustrating myimproved ice clearing attachment applied to a trolley pole; Fig. 2 is adetail, sectional view of the ice clearing wheel taken on the line -2 ofFig. 1; Fig. 3 is a sectional elevation of the supporting device for theice clearing wheel taken on the line 3-3 of Fig. 1; Fig. 4 is asectional plan taken on the line 1-1 of Fig. 1; and Fig. 5 is a detailperspective on an enlarged scale of one of the ice clearing elements.

Referring by numerals to the accompanying drawings: 1 designates anordinary trolley pole. 2 a fork carried by the pole and 3 the trolleywheel, the fork and wheel being of ordinary design.

4 and 5 designate the mating halves of the support for the ice clearingwheel, which are each substantially disk-shape and rotatably connectedwith each other by means of a bolt 6. Carried by and preferably formedintegral with the disk 5 is a clamp 7 whereby the disk 5 may bedetachably secured to the trolley pole.

8 designates a socket formed in the disk 1 to receive the stem 9 of thefork 10 which rotatably supports the ice clearing wheel.

11 designates a set screw extended into the 7 socket 8 to provide ameans whereby the fork may be adjusted relative to the disk 4:.

The body of the disk 5 is provided with an opening 12 concentric withthe bolt 6, and the disk a carries an integral lug 13 which extendsthrough the opening 12. Surrounding the opening 12 is a housing 14 inwhich is incased an eXte-nsile coil spring 15 having one of its endsimpinging against the end of the housing 14 and its other end againstthe lug 13.

The ice clearing wheel, supported in the fork 10 upon the bolt 16.comprises a pair of s-ks 17 which embrace the bolt 16. These disks areeach perforated through their bodies adjacent their peripheries in orderto receive the ends of the wire-contacting elements 18. The disks 17 areheld apart by means of a sleeve 19 which, together with the disks,rotates in the fork 10 upon the bolt 16.

While I have shown the wire contacting elements of a cross sectionsubstantially triangular and at. their central portions formedsubstantially U-shape, I do not wish to be understood as limiting myselfto this construction, but I believe this to be the construction which ismost efficient.

The triangular cross section presents a sharp cutting edge so as to morerapidly break the ice from the trolley wire and, also serves to preventthe rotation of the contact elements relative to their supports in thedisks 17. The U-shaped body portion serves to contact with the sides aswell as the bottom of the trolley wire in order to clear the surface ofthe trolley wire which is engaged by the trolley wheel proper.

The device of my invention is in the nature of an attachment which maybe readily taken off of the trolley pole when it is not desired to useit.

In the event that the trolley wire is coated with ice, the device of myinvention may be attached to the pole by means of the clamping members 7and the wire contacting elements 18 are arranged to engage the wire. Thespring 15, engaging the lug 13 causes the disk 4 to hold the fork 10 andthe disks 17 in positions to hold the wire contacting elements 18 inpositions to bear with considerable pressure upon the trolley wire.

I claim:

I An ice clearing wheel for trolley wires,

comprising a journal, a pair of spaced apart I In testimony. whereof, Ihave signed 1ny disks oarr1ed by. the ]OLlII1ELl, there be ng a I nameto this speo1ficat1on,1npresence of two 10 plurality of n0n-c1rcularopenings in each subscribing Witnesses.

disk adjacent its periphery a plurality of trolley Wire engagingelements, non-circular CHARLES in cross section, held in the openings inthe Witnesses:

disks, and means for holding the disks E. L. VVALLAGE,

against axial movements. N. Gr. BUTLER.

Copies of this patent may he obtained for five cents each, b3 addressingthe Commissioner of Patents,

Washington, D. G.

